After Kong Shiyu and Kong Lei woke up, they were sent back by Xiao Langtian, and as for Tiangang City, which had become a ruin, Xiao Langtian asked Nie Tiangang to take some building materials and send someone to rebuild it.

The speed of the warrior building was very fast, and within a few days, the originally destroyed Tiangang City was restored to its former appearance.

The city lord still continued to let Nie Tiangang serve, and Xiao Langtian was also happy to be idle.

A month has passed.

Xiao Tian came to his senses as promised, and Xiao Langtian also successfully learned how to use the Cold Night Cold Knife, and found an empty ocean and successfully used it once.

What made Xiao Langtian helpless was that before the blow was used, the true yuan in Xiao Langtian's body was exhausted, and it seemed that in actual combat, he still had to rely on Xiaotian to complete it.

This move can be regarded as Xiao Langtian's most powerful killer weapon, and its power has reached the level of a third-order Martial Emperor, second only to complete demonization.

But this move has a fatal weakness, that is, the charging time is too long, and it is easy to be broken by the enemy in actual combat, and after using it once, Xiaotian will fall into a deep sleep. Therefore, Xiao Langtian still didn't have much confidence that he could defeat Emperor Wu.

Time passes.

On this day, Xiao Langtian sent a clone to the location where the Law Crystal Mine was located.

After a day and a night of flying, Xiao Langtian's doppelganger arrived here and dived under the sea.

According to Nie Tiangang, the Law Crystal Mine was blocking something. Judging from Xiao Langtian's experience, if a certain demon head or a powerful monster is sealed, it will definitely be suppressed with a demon sealing formation or a spirit treasure, so first of all, living creatures can be excluded.

In other words, there may be a space sealed here, or a certain cave, a secret treasure, or something like that.

What is sealed, Xiao Langtian is not clear for the time being, so he can only go in and test it in person.

As for the serious consequences that Nie Tiangang said, they were directly ignored by Xiao Langtian, Donghe dared to send a group of innate laborers to dig over, obviously there would be no devastating catastrophe that would endanger Kirishima. Anyway, he can't get out if he's trapped in Kirishima, and sooner or later he will go to the magic crystal mine, so it's better to send a clone to see it first.

Xiao Langtian's doppelganger came to the location of the mine, there was a formation arranged by Donghe, and now that Donghe was dead, Xiao Langtian easily broke it.

Subsequently, Xiao Langtian entered the mine.

The cave is no different from two years ago, the only difference is that it is filled with seawater.

His divine sense scouted inside, searching for a clue.

At this time, he suddenly detected that outside the mine, there was a giant whale sea beast swimming over, and the strength of the sea beast had actually reached the peak of the second-order Demon Emperor.

The sea beast's divine sense also discovered Xiao Langtian, turned into a human form, and instantly rushed into the mine.

After seeing Xiao Langtian, the sea beast didn't say a word, and shot a True Yuan Water Arrow at Xiao Langtian, shattering him.

In Tiangang City, Xiao Langtian's body opened his eyes in shock.

"I was discovered, come again!"

Xiao Langtian once again condensed his clone and sent it to the Sea of Shenzhou.

This time the result was even worse, and before he could get closer, he was killed by a blood-colored shark.

"Come again!" Xiao Langtian didn't believe in evil anymore, and sent the clone over again.

However, the ending is still the same, as soon as he got close, he was discovered, he couldn't escape, and he was torn to pieces.

The giant whale sea beast and the blood-colored shark seemed to know that Xiao Langtian would come, so they stopped at the door of the mine and didn't leave, until Xiao Langtian tried more than a dozen times and failed, and finally had no choice but to give up.

Xiao Langtian suddenly realized a question - why didn't those sea beasts mine the law crystal mine?

The law crystal, whether it is for humans or demon beasts, has very great benefits.

It stands to reason that those sea beasts live in the Sea of Shenzhou all year round, and even Donghe has discovered the Law Crystal Mine, plus Xiao Langtian has broken through it more than a dozen times, it is impossible for them not to discover heresy.

This shows that the sea beasts must have known about the Law Crystal Mine for a long time!

Since they didn't mine, it showed a problem - they knew that the mine was dangerous.

Xiao Langtian was suddenly shocked.

"Yes, maybe the sea beast knows the secrets of the mines, so you might as well grab one and ask first. ”

Xiao Langtian sent a clone again.

Xiao Langtian's doppelganger came to the bottom of the sea near the mine, grabbed a demon saint-level sea beast at random, and then quickly escaped, brought it back to Kirishima Island, and refined it into a demon puppet.

"Say, what's the secret of the mine?" Xiao Langtian asked to a mermaid in front of him.

"I don't know, Lord Demon Emperor has given an order not to go near there. The mermaid said with blank eyes.

Xiao Langtian had no choice but to bring the mermaid into the inner world.

In this way, if you want to find out what kind of name the mine is, you must catch a demon emperor.

According to Xiao Langtian's exploration these days, the closest to the mine cave is the Giant Whale Demon Emperor, who is the peak of the second-order Demon Emperor, and there is a blood-colored shark, which is the early stage of the second-order Demon Emperor.

In addition, there are two demon emperors who are relatively far away, and they have also killed his clones, a Xuan turtle and an eight-legged squid, both of which are first-order demon emperors.

Dang, in addition to the fact that these four demon emperors may know the secrets of the mine, Xiao Langtian also discovered tens of thousands of miles under the seabed, hiding a faint and powerful aura, I am afraid that it exceeds the third-order demon emperor, and it is not something he is qualified to touch.

In other words, his target of capture can only be set on these four demon emperors.

"It's really troublesome, with my own strength, plus Xuanyou, I can't start at all. Xiao Langtian was very distressed.

Sea beasts are no better than humans, once a sea beast is attacked, if Xiao Langtian can't kill it with one blow and retreat in time, it will definitely attract the siege of other sea beasts.

Once his body and Xuanyou's actions failed, and he was surrounded by several Sea Beast Demon Emperors, he could only hide in the Demon God Temple.

"Brother Xiao, I'm still thinking about the mine. Xiao Yue walked up to Xiao Langtian and leaned on him.

"Well, I can't be trapped in Kirishima for the rest of my life, I have to find a way to get out, and I think the mine is an opportunity. "Xiao Lang Tiandao.

Xiao Yue said with a smile: "Brother Xiao, as a wolf clan, you can trade and cooperate with sea beasts, and you don't have to fight and kill. ”

"Come on, if the sea beast knows that I am a wolf clan, it will be difficult for both sides to resolve it. ”

Xiao Langtian had no choice but to spread his hands, what happened to Lei Ao last time was like a thorn in his heart.

"Last time, they besieged you because Brother Xiao was not strong enough, but now, as long as Brother Xiao has enough negotiation capital, they won't dare to think crookedly about you!" Xiao Yue said with a smile.

When Xiao Langtian heard this, his eyes lit up.

Xiao Yue's words seem to have some truth!

The negotiation capital, first of all, is that its own strength is strong enough, and secondly, it has enough helpers, strong enough to compete with the army of sea beasts.